private void cmbDayCalendar_Lunar_Month_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
lblDayCalendar_Error.Visible = false;
btnDayCalendar_PreviousDate.Enabled = true;
btnDayCalendar_NextDate.Enabled = true;
currentLunarMonth = int.Parse(cmbDayCalendar_Lunar_Month.Text.Substring(0, 2));
if (cmbDayCalendar_Lunar_Month.Text.Length > 2)
{
currentLunarIsLeapMonth = true;
}
DayCalendar_ModifySelectedDate_Lunar();
LunarDate currentLunarDate = new LunarDate(currentLunarDay, currentLunarMonth, currentLunarIsLeapMonth, currentLunarYear, timeZone);
SolarDate currentSolarDate = currentLunarDate.ToSolarDate();
currentSolarYear = currentSolarDate.Year;
currentSolarMonth = currentSolarDate.Month;
currentSolarDay = currentSolarDate.Day;
cldLunarDayCalendar.SelectedDate = new DateTime(currentSolarYear, currentSolarMonth, currentSolarDay);
}
catch (Exception exc)
{
lblDayCalendar_Error.Text = "Lỗi: " + exc.Message;
lblDayCalendar_Error.Visible = true;
btnDayCalendar_PreviousDate.Enabled = false;
btnDayCalendar_NextDate.Enabled = false;
}
}
private void cmbDayCalendar_Lunar_Day_SelectedIndexChanged(object sender, EventArgs e)
{
if (cmbDayCalendar_Lunar_Day.SelectedIndex == -1)
{
return;
}
try
{
lblDayCalendar_Error.Visible = false;
btnDayCalendar_PreviousDate.Enabled = true;
btnDayCalendar_NextDate.Enabled = true;
int currentLunarDay = int.Parse(cmbDayCalendar_Lunar_Day.Text);
currentLunarDate = new LunarDate(currentLunarDay, currentLunarDate.Month, currentLunarDate.IsLeapMonth, currentLunarDate.Year, timeZone);
currentSolarDate = currentLunarDate.ToSolarDate();
cldLunarDayCalendar.SelectedDate = new DateTime(currentSolarDate.Year, currentSolarDate.Month, currentSolarDate.Day);
}
catch (Exception exc)
{
lblDayCalendar_Error.Text = "Lỗi: " + exc.Message;
lblDayCalendar_Error.Visible = true;
btnDayCalendar_PreviousDate.Enabled = false;
btnDayCalendar_NextDate.Enabled = false;
}
}
private void txtDayCalendar_Lunar_Year_Validated(object sender, EventArgs e)
{
try
{
lblDayCalendar_Error.Visible = false;
btnDayCalendar_PreviousDate.Enabled = true;
btnDayCalendar_NextDate.Enabled = true;
currentLunarYear = int.Parse(txtDayCalendar_Lunar_Year.Text);
DayCalendar_ModifySelectedDate_Lunar();
LunarDate currentLunarDate = new LunarDate(currentLunarDay, currentLunarMonth, currentLunarIsLeapMonth, currentLunarYear, timeZone);
SolarDate currentSolarDate = currentLunarDate.ToSolarDate();
currentSolarYear = currentSolarDate.Year;
currentSolarMonth = currentSolarDate.Month;
currentSolarDay = currentSolarDate.Day;
cldLunarDayCalendar.SelectedDate = new DateTime(currentSolarYear, currentSolarMonth, currentSolarDay);
}
catch (Exception exc)
{
lblDayCalendar_Error.Text = "Lỗi: " + exc.Message;
lblDayCalendar_Error.Visible = true;
btnDayCalendar_PreviousDate.Enabled = false;
btnDayCalendar_NextDate.Enabled = false;
}
}
private void DayCalendar_ModifySelectedDate_Lunar(int lunarMonth, bool lunarIsLeapMonth, int lunarYear)
{
//Check mininum value
if (lunarYear == 0)
{
if (currentLunarDate.Month < 11)
{
currentLunarDate = new LunarDate(19, 11, false, 0, timeZone);
}
else if (currentLunarDate.Month == 11)
{
if (currentLunarDate.Day < 19)
{
currentLunarDate = new LunarDate(19, 11, false, 0, timeZone);
}
else
{
currentLunarDate = new LunarDate(currentLunarDate.Day, 11, false, 0, timeZone);
}
}
}
//Month
ArrayList months = LunarDate.GetMonths(lunarYear, timeZone);
if (lunarIsLeapMonth)
{
bool flag = false;
foreach (string month in months)
{
if (month.Length > 2 && month.Substring(0, 2) == lunarMonth.ToString("00"))
{
flag = true;
break;
}
}
if (!flag)
{
currentLunarDate = new LunarDate(currentLunarDate.Day, lunarMonth, false, lunarYear, timeZone);
}
}
//Day
int n = LunarDate.GetNumberOfDaysInMonth(lunarMonth, lunarIsLeapMonth, lunarYear, timeZone);
if (currentLunarDate.Day > n)
{
currentLunarDate = new LunarDate(n, lunarMonth, lunarIsLeapMonth, lunarYear, timeZone);
}
else
{
currentLunarDate = new LunarDate(currentLunarDate.Day, lunarMonth, lunarIsLeapMonth, lunarYear, timeZone);
}
currentSolarDate = currentLunarDate.ToSolarDate();
}
public static int GetNumberOfDaysInMonth(int month, bool isLeapMonth, int year, int timeZone)
{
if (year == 9999 && month == 12)
{
return(29);
}
LunarDate newMoonDay_Lunar = new LunarDate(1, month, isLeapMonth, year, timeZone);
SolarDate newMoonDay_Solar = newMoonDay_Lunar.ToSolarDate();
SolarDate testDate_Solar = new SolarDate(newMoonDay_Solar.JulianDayNumber + 32);
LunarDate testDate_Lunar = testDate_Solar.ToLunarDate(timeZone);
LunarDate nextNewMoonDay_Lunar = new LunarDate(1, testDate_Lunar.Month, testDate_Lunar.isLeapMonth, testDate_Lunar.Year, timeZone);
SolarDate nextNewMoonDay_Solar = nextNewMoonDay_Lunar.ToSolarDate();
return((int)(nextNewMoonDay_Solar.JulianDayNumber - newMoonDay_Solar.JulianDayNumber));
}